.. function:: dump(obj, file, protocol=None, \*, fix_imports=True, buffer_callback=None)
- Write a pickled representation of *obj* to the open :term:`file object` *file*.
- This is equivalent to ``Pickler(file, protocol).dump(obj)``.
+ Write the pickled representation of the object *obj* to the open
+ :term:`file object` *file*. This is equivalent to
+ ``Pickler(file, protocol).dump(obj)``.
Arguments *file*, *protocol*, *fix_imports* and *buffer_callback* have
the same meaning as in the :class:`Pickler` constructor.
.. function:: dumps(obj, protocol=None, \*, fix_imports=True, buffer_callback=None)
- Return the pickled representation of the object as a :class:`bytes` object,
+ Return the pickled representation of the object *obj* as a :class:`bytes` object,
instead of writing it to a file.
Arguments *protocol*, *fix_imports* and *buffer_callback* have the same
.. function:: load(file, \*, fix_imports=True, encoding="ASCII", errors="strict", buffers=None)
- Read a pickled object representation from the open :term:`file object`
+ Read the pickled representation of an object from the open :term:`file object`
*file* and return the reconstituted object hierarchy specified therein.
This is equivalent to ``Unpickler(file).load()``.
The protocol version of the pickle is detected automatically, so no
- protocol argument is needed. Bytes past the pickled object's
- representation are ignored.
+ protocol argument is needed. Bytes past the pickled representation
+ of the object are ignored.
Arguments *file*, *fix_imports*, *encoding*, *errors*, *strict* and *buffers*
have the same meaning as in the :class:`Unpickler` constructor.
.. function:: loads(bytes_object, \*, fix_imports=True, encoding="ASCII", errors="strict", buffers=None)
- Read a pickled object hierarchy from a :class:`bytes` object and return the
- reconstituted object hierarchy specified therein.
+ Return the reconstituted object hierarchy of the pickled representation
+ *bytes_object* of an object.
The protocol version of the pickle is detected automatically, so no
- protocol argument is needed. Bytes past the pickled object's
- representation are ignored.
+ protocol argument is needed. Bytes past the pickled representation
+ of the object are ignored.
Arguments *file*, *fix_imports*, *encoding*, *errors*, *strict* and *buffers*
have the same meaning as in the :class:`Unpickler` constructor.
.. method:: dump(obj)
- Write a pickled representation of *obj* to the open file object given in
+ Write the pickled representation of *obj* to the open file object given in
the constructor.
.. method:: persistent_id(obj)
.. method:: load()
- Read a pickled object representation from the open file object given in
- the constructor, and return the reconstituted object hierarchy specified
- therein. Bytes past the pickled object's representation are ignored.
+ Read the pickled representation of an object from the open file object
+ given in the constructor, and return the reconstituted object hierarchy
+ specified therein. Bytes past the pickled representation of the object
+ are ignored.
.. method:: persistent_load(pid)
any newer protocol).
The resolution of such persistent IDs is not defined by the :mod:`pickle`
-module; it will delegate this resolution to the user defined methods on the
+module; it will delegate this resolution to the user-defined methods on the
pickler and unpickler, :meth:`~Pickler.persistent_id` and
:meth:`~Unpickler.persistent_load` respectively.
-To pickle objects that have an external persistent id, the pickler must have a
+To pickle objects that have an external persistent ID, the pickler must have a
custom :meth:`~Pickler.persistent_id` method that takes an object as an
-argument and returns either ``None`` or the persistent id for that object.
+argument and returns either ``None`` or the persistent ID for that object.
When ``None`` is returned, the pickler simply pickles the object as normal.
When a persistent ID string is returned, the pickler will pickle that object,
along with a marker so that the unpickler will recognize it as a persistent ID.